investigations
as defined in Regulation (EU, Euratom) No 883/2013 of the European Parliament and of the…, Article 2, point (4) (Definitions)
any inspection, check or other measure undertaken by the Office in accordance with Articles 3 and 4, with a view to achieving the objectives set out in Article 1 and to establishing, where necessary, the irregular nature of the activities under investigation; those investigations shall not affect the powers of the competent authorities of the Member States to initiate criminal proceedings